Transwestern Pipeline Company

Second Revised Volume No. 1

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Effective Date: 02/01/1993, Docket: RS92- 87-003, Status: Effective

1st Revised Sheet No. 60 1st Revised Sheet No. 60 : Effective

Superseding: Original Sheet No. 60





gas received or delivered and ready verification of the accuracy of

measurement. Reasonable care shall be exercised in the installation,

maintenance and operation of any upstream or downstream pressure

regulating equipment which may be installed so as to avoid, so far as

practicable, any inaccuracy in the determination of the quantity of

gas received or delivered hereunder.


5.5 Failure of Meters


In the event a meter fails or is out of service, or registering

inaccurately by more than one percent (1%); the quantity of gas

received or delivered hereunder shall be estimated:


A. By using the registration of any check meter or meters if

installed and accurately registering, or, in the absence of



B. By correcting the error if the percentage of error is

ascertainable by calibration, test, or mathematical

calculation, or in the absence of both (A) and (B), then;


C. By estimating the quantity of receipts or deliveries during

periods under similar conditions when the meter was registering



5.6 Test of Meters


The accuracy of Measurer's measuring equipment, including

chromatographs, shall be verified at least quarterly by routine tests

(or as otherwise agreed to by the parties), upon reasonable notice to

Non-Measurer, who shall have the right to witness. Non-Measurer

shall verify the accuracy of its check measuring equipment. In the

event either party notifies the other that it desires a special test

of any measuring equipment, the parties shall cooperate to secure

prompt verification of the equipment.